Java Object Create as(Object value, Class type)

Description

Returns the given value cast to the given type if it is an instance of it, null otherwise

License

Apache License

Parameter

Parameter	Description
value	the value to cast
type	the class of the type expected for the value
T	the type of the value

Return

the value cast to T if castable, null otherwise

Declaration

public static <T> T as(Object value, Class<T> type) 

Method Source Code

//package com.java2s;
/*//w w  w  . ja v  a2 s. c  o  m
 * Copyright (C) 2014 Bastien Aracil
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

public class Main {
    /**
     * Returns the given value cast to the given type if it is an instance of it, null otherwise
     *
     * @param value the value to cast
     * @param type the class of the type expected for the value
     * @param <T> the type of the value
     * @return the value cast to T if castable, null otherwise
     */
    public static <T> T as(Object value, Class<T> type) {
        if (type.isInstance(value)) {
            return type.cast(value);
        }
        return null;
    }
}

Related

1. as(Object instance, Class clazz)
2. as(Object o)
3. as(Object o, Class clazz)
4. as(Object obj)
5. as(Object value, Class c)
6. toObject(boolean[] array)
7. toObject(byte[] array)
8. toObject(byte[] byteArray)
9. toObject(byte[] primitiveArray)